Nuovo soggettario BNCF Biblioteca Nazionale Centrale Firenze Ministero della Cultura
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            • • • • • • • • Organismi
           • • • • • • • [Organismi diversi da vegetali, animali, umani]
          • • • • • • Procarioti
         • • • • • Batteri
        • • • • Proteobacteria
       • • • Proteobacteria gamma
      • • Enterobacteriales
     • Enterobacteriaceae
    ►Shigelle
         •  Shigella dysenteriae